Fernando Alonso remains the most complete driver in Formula One and should stay in the sport for the foreseeable future, according to Emerson Fittipaldi.
Alonso won the drivers' championship in 2005 and 2006 during his time at Renault, before finishing as a runner-up three times with Ferrari.
The Spaniard's returned to McLaren in 2015 has proved fruitless, with disappointing finishes of 17th and 10th at the struggling constructor.
There had been hopes that new regulations in F1 would level the playing field for the coming season, but McLaren endured more problems in pre-season and it is thought Alonso will contemplate his future with the team if he endures another campaign of struggle.
Last year, there were even rumblings that he may retire, but Fittipaldi - also a two-time world champion - expects Alonso, considered by many as one of the most gifted drivers of his generation, to continue enjoying success.
"To me, still today, Fernando Alonso is the most complete driver that's out there racing," Fittipaldi, speaking courtesy of Laureus, told Omnisport.
"He's incredible for testing and he's incredible as a racer. You know the famous phrase, when the flag drops the bulls**t stops. He's always there running very strong but sometimes the equipment is not there.
"He's a world champion and is extremely talented and very intelligent. He's going to leave a lot of legacy.
"I hope he doesn't stop. He has the physical ability to continue for many years, as long as he has the passion then he can continue for many years."
The dominance of F1 by Mercedes has gone unchallenged for the past three seasons, but Fittipaldi - a former McLaren driver - claimed the chasing pack can come back strong.
"Looking at the history of motor racing, the cycle and success of a team always happens," he added.
"Sometimes a team can be three, four or five years competing and winning.
"[But] McLaren can come back very strong, Ferrari can come back very strong, Williams can come back very strong. They've already won many world championships."
|Spieth feeling good ahead of Tour Championship|
|Thomas unsurprised by stunning season|
|Lakers confirm Bogut signing|
|Maestro Messi brings up 300 Camp Nou goals|
|Saints trade 2015 first-round pick Anthony to Dolphins|
|Messi is extraordinary – Valverde hails Barcelona star|
|Inter eyeing Champions League return - Eder|
|UCI reduces Grand Tour team sizes|
|Klopp ´sick´ of conceding as Liverpool tumble out of EFL Cup|
|Hodgson urges caution over Souare handling|
|Gasquet stunned by Istomin in Metz|
|Barcelona 6 Eibar 1: Majestic Messi leads romp with four goals for LaLiga leaders|
|Burnley 2 Leeds United 2 (aet, 3-5 pens): Lonergan the penalty hero as Championship leaders cause cu|
|Matic and Fellaini have never been this good – Mourinho tells Carrick, Herrera to be patient|
|I´m the first to trust young players - Conte defends Chelsea youth record|
|Inconsistent Windies disappoint Holder|
|Bairstow pleased to take ODI chance|
|Tottenham 1 Barnsley 0: Alli sees off stubborn Tykes|
|Bologna 1 Inter 1: Contentious Icardi spot-kick maintains Spalletti´s unbeaten run|
|Leicester City 2 Liverpool 0: Okazaki, Slimani dump Klopp´s men out of EFL Cup|
|Schalke 0 Bayern Munich 3: James scores on first Bundesliga start|
|Atletico benefiting from competition of fringe players - Simeone|
|England centurion Bairstow ends West Indies´ World Cup hopes|
|Manchester City have got two players for every position - Delph|
|Peng digs deep to avoid Guangzhou upset|
|Youzhny and Troicki battle through in St. Petersburg|
|Rossi close to Aragon return after completing 20 laps|
|Bayern could say they don´t need me – Lewandowski accepts football´s cut-throat nature|
|PGA Tour releases 2017-18 schedule|
|Wasps dealt blow as Cipriani ruled out for 12 weeks|
|Montella to keep on rotating as he plans for long season|
|Billionaire investor announces he is ´done´ funding Hamburg|
|Van Vleuten leads Dutch one-two in Bergen time trial|
|World Cup success Gibson´s top priority with South Africa|
|Philander sidelined for first Bangladesh Test|
|Wenger confirms Welbeck groin injury|
|Ljungberg sad to leave Wolfsburg|
|Ferdinand, McGregor and Curry - Sport´s most notable crossover stars|
|Will Bellew put pen to paper? - Haye claims terms for rematch agreed|
|Messi has his story, I have mine - Dybala plays down compatriot comparisons|
|Hazard to start against Nottingham Forest as Conte prepares to rotate|
|New Real Madrid contract ´already done´ for Zidane|
|´Fresh´ Froome ready for Bergen time-trial challenge|
|Chelsea won´t appeal David Luiz red card, Conte confirms|
|Cibulkova on form in Tokyo|
|Mbappe and Dembele lead Golden Boy nominees|
|Dembele tipped for early January return after successful surgery|
|I hope it´s the last time – Zidane relieved to welcome back Ronaldo|
|Szczesny to face Fiorentina as Allegri calls for Juventus consistency|
|Court will hear appeal to extend Pistorius sentence|
|Gundogan fears he might never return to top form after Manchester City injury nightmare|
|Springbok Kriel out for six months|
|Bayern Munich goalkeeper Neuer ruled out until January|
|Kick It Out contact Manchester United over ´offensive´ Lukaku chant|
|´Golovkin v Canelo rematch must avoid judge controversy´|
|It´s Seoul over for Bertens & Pliskova|
|He said what?! The best NFL quotes from week two|
|Cologne drop protest against Borussia Dormtund VAR goal|
|Ferdinand wants to recapture ´chemical of competition´ from boxing|
|Barcelona not planning January signings despite Dembele injury|
|Bulldogs give Hasler the boot|
|Neville trolls Ferdinand as Manchester United great starts boxing career|
|Manchester United great Rio Ferdinand to launch boxing career|
|Morgan won´t hold Stokes back ahead of impending Samuels rivalry renewal|
|Oxlade-Chamberlain relieved to join Liverpool from Arsenal, says Klopp|
|Red Sox keep Yankees at arm´s length, Brewers inch closer to Rockies|
|Case closed! Tianjin Quanjian dismiss Aubameyang links|
|He Said What?! The best NFL quotes from week two|
|Foreman ´awfully surprised´ by McGregor´s boxing but doesn´t expect him back in ring|
|Lions rip Giants as Beckham returns|